1L9J

X-Ray Structure of the Cytochrome-c(2)-Photosynthetic Reaction Center Electron Transfer Complex from Rhodobacter sphaeroides in Type I Co-Crystals

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, E (L, R)	REACTION CENTER PROTEIN L CHAIN	polymer	281	31346.4	2	UniProt (P02954) Pfam (PF00124) UniProt (by SIFTS) (P0C0Y8)	Rhodobacter sphaeroides	Photosynthetic reaction center L subunit
2	B, F (M, S)	REACTION CENTER PROTEIN M CHAIN	polymer	307	34398.5	2	UniProt (P02953) Pfam (PF00124) UniProt (by SIFTS) (P0C0Y9)	Rhodobacter sphaeroides	Photosynthetic reaction center M subunit
3	C, G (H, T)	REACTION CENTER PROTEIN H CHAIN	polymer	260	28066.3	2	UniProt (P11846) Pfam (PF03967) Pfam (PF05239) UniProt (by SIFTS) (P0C0Y7)	Rhodobacter sphaeroides	Photosynthetic reaction center H subunit
4	D, H (C, D)	cytochrome c-2	polymer	124	13488.1	2	UniProt (P00095) UniProt (by SIFTS) (P0C0X8)	Rhodobacter sphaeroides
5	AA, I, J, N, O... (S, L, M, R)	BACTERIOCHLOROPHYLL A	non-polymer		911.5	8	Chemie (BCL)
6	BA, K, P, W (S, L, M, R)	BACTERIOPHEOPHYTIN A	non-polymer		889.2	4	Chemie (BPH)
7	L, X (M, S)	FE (II) ION	non-polymer		55.8	2	Chemie (FE2)
8	M, Y (M, S)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
9	CA, Q (S, M)	UBIQUINONE-10	non-polymer		863.3	2	Chemie (U10)
10	DA, EA, R, S (S, M)	LAURYL DIMETHYLAMINE-N-OXIDE	non-polymer		229.4	4	Chemie (LDA)
11	FA, T (D, C)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
12	GA, HA, IA, JA, KA... (L, M, H, C, R...)	water	water		18.0	129	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	214598.6
Non-Polymers*	Number of molecules	24
	Total formula weight	14908.8
All*	Total formula weight	229507.4

*Water molecules are not included.